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777 (07) Water Truck
Specifications
Body Hoists
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Pump Flow - High Idle6331 gal/min 458 l/min
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Relief Valve Setting - Raise2750 psi 18950 kPa
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Relief Valve Setting - Lower500 psi 3450 kPa
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Body Raise Time - High Idle15 s 15 s
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Body Lower Time - Float13 s 13 s
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Body Lower Time - High Idle13 s 13 s
Braking System
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Brake Surface - Front6331 in² 40846 cm²
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Brake Surface - Rear15828 in² 102116 cm²
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Brake StandardsISO 3450:2011
Cab
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Air Conditioning18390 Btu/lb 42789 Btu/kWh
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Heater / Defroster43930 Btu 11070 kJ/kg
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ROPS Standards (1)Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
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FOPS StandardsFalling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.
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Note (1)The operator Equivalent Sound Pressure Level (Leq) is 73 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with the cab doors and the cab windows closed.
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Note (2)The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid-gear moving operation is 83 dB(A).
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Note (3)Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
Cat Water Delivery System (WDS)
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Maximum water flow1800 gal(US)/min 6814 l/min
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Water per spray head (minimum)35 gal(US)/min 132.5 l/min
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Water per spray head (maximum)600 gal(US)/min 2270 l/min
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Spray head opening range (minimum)0.04 in 1 mm
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Spray head opening range (maximum)0.75 in 19 mm
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Maximum size debris flushed through spray head0.75 in 19 mm
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Spray system hydraulic tank capacity7.25 gal (US) 27.5 l
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Maximum number of rear spray heads5
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Minimum number of rear spray heads (recommended 3)2
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Minimum number of front/side spray heads2
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Maximum number of front/side spray heads0
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Maximum water from cannon (idle)600 gal(US)/min 2271 l/min
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Maximum water from cannon (high idle)1650 gal(US)/min 6246 l/min
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Maximum cannon spray distance200 ft 61 m
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TypeWet water pump/hydraulic motor coupling
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NoteOperator selectable coverage: 0.1 - 0.8 L/m² (4 kph - 40 kph) / 0.05 - 0.2 gal/ft² (3 mph - 25 mph). Coverage rates above 0.6 L/m² may not be available at higher speeds depending on head count and configuration.
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Note (1)Spray head opening is automatically controlled by the system to achieve Auto Mode Coverage or manual mode flow rate.
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Note (2)The Auto Mode setting controls water coverage and automatically adjusts to the number of spray heads being used — independent of ground speed. This is an exclusive feature designed into the Cat WDS software to help water more efficiently. Water flow is continually adjusted during operation to conserve water and achieve desired coverage and flow rate.
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Note (3)Alternatively, manual mode allows the operator to set a water flow rate that is constant regardless of ground speed. This mode is not recommended for daily operation and will reduce watering efficiency and may increase fuel usage.
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Note (4)Spray heads on competitive water distribution systems require tools and maintenance to change flow and spray pattern. Caterpillar is the only company to have variable active spray heads to regulate water spray.
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Note (5)Cannon performance depends on nozzle orifice and pipe size.
Engine
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Engine ModelCat® C32B
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Gross Power - SAE J1995:20141025 hp 765 kW
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Engine Speed1800 r/min 1800 r/min
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Net Power - SAE J1349:2011916 hp 683 kW
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EmissionsFuel Optimized
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Cylinders12
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Bore5.7 in 145 mm
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Stroke6.4 in 162 mm
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Displacement1959 in³ 32.1 l
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Note (1)Net Power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator with engine speed at 1,800 rpm.
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Note (2)Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
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Note (3)Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
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Note (4)No engine derating required up to 2286 m (7,500 ft) for Tier 4/Stage V.
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Note (5)Available as Tier 4 Final/Stage V equivalent, Tier 3/Stage IIIA equivalent, or Tier 2/Stage II equivalent emission standards.
Final Drives
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Differential Ratio2.736:1
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Planetary Ratio7.0:1
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Total Reduction Ratio19.1576:1
Operating Specifications
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Top Speed - Loaded41.7 mile/h 67.1 km/h
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NoteWater Tank Capacity Range: 69 700 - 75 700 L (18,400 - 20,000 gal)
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Note (2)Operator selectable coverage: 0.2-0.8 L/m² (4 kph - 40 kph) / 0.5-0.2 gal/ft² (3 mph - 25 mph)
Service Refill Capacities
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Fuel Tank (1)300 gal (US) 1136 l
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Fuel Tank (2)350 gal (US) 1325 l
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Cooling System63.4 gal (US) 240 l
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Crankcase28.7 gal (US) 109 l
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Differentials59.9 gal (US) 227 l
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Final Drive - Each20 gal (US) 76 l
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Steering System - Including Tank14.1 gal (US) 53.6 l
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Brake Hoist System85 gal (US) 322 l
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Torque Converter - Transmission System36.5 gal (US) 138.5 l
Steering
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Steering StandardsISO 5010:2007
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Steer Angle30.5 ° 30.5 °
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Turning Diameter - Front83 ft 25.3 m
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Turning Circle - Clearance Diameter93 ft 28.4 m
Suspension
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Empty Loaded Cylinder Stroke Front2.9 in 74.7 mm
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Empty Loaded Cylinder Stroke Rear2.5 in 66 mm
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Rear axle - Oscillation5.4 ° 5.4 °
Tank Configurations
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Water Tank Capacityup to 75 700 L (20,000 gal)
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NoteMultiple tank configurations are offered based on customer preference and regional locations. Water Tank Capacity Range: 75 400 - 75 700 L (19,900 - 20,000 gal)
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Machine Weight (with water tank full)327,964 - 327,964 lb / 147 172 - 148 762 kg
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Empty Machine Operating Weight (without water / with fuel)160,307 - 162,323 lb / 72 714 - 73 629 kg
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Water Tank - Max Empty Weight (no WDS)42,983 - 44,092 lb / 19 497 - 20 000 kg
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Note (1)Cat branded tanks include additional features and options commonly selected by customers in the industry. Splash guards, fill chute, and rock ejectors are standard.
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Note (2)Hoist cylinder mounting on all tank offerings enhances serviceability.
Tires
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Standard Tire27.00R49 (E4)
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Note (1)Productive capabilities of the 777 truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.
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Note (2)Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
Transmission
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Forward - 16.6 mile/h 10.7 km/h
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Forward - 29.1 mile/h 14.6 km/h
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Forward - 311.9 mile/h 19.2 km/h
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Forward - 416.6 mile/h 26.7 km/h
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Forward - 522.5 mile/h 36.2 km/h
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Forward - 630.2 mile/h 48.6 km/h
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Forward - 740.9 mile/h 65.9 km/h
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Reverse7.5 mile/h 12.1 km/h
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NoteMaximum travel speeds with standard 27.00R49 (E4) tires.
Weight Distributions - Approximate
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Front Axle - Empty46 % 46 %
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Front Axle - Loaded33 % 33 %
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Rear Axle - Empty54 % 54 %
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Rear Axle - Loaded67 % 67 %
Weights - Approximate
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Target Gross Machine Weight363000 lb 164654 kg
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Chassis Weight115217 lb 52262 kg
Benefits
ENHANCE SAFETY & PRODUCTIVITY
- Lower dust levels, increase visibility, maintain haul road safety — know where and when to water
- With automated water delivery, the operator can remain focused on traffic and driving
- When water tank is full, the auto shutoff feature prevents overfilling and results in increased component life
- Monitor tank fill from inside the cab
- The water delivery system features automatic start and stop, based on truck speed, which eliminates overwatering at road intersections to improve safety for all vehicles on site
- Traction Control System (TCS) and Wet Disc Braking is standard on all four corners of the truck
- Automatic Retarding Control (ARC) for downhill grades
OPERATOR COMFORT
- Ergonomic, intuitive controls, with left side power window and automatic temperature control
- Spacious cab with window area that supports visibility
- Cab is isolation mounted reducing noise and vibration — sound suppression has decreased noise by 50%
- Lighting packages illuminate both side and front of vehicle
- Factory-installed, integrated and durable ergonomic cab water controls are user-friendly and easy to learn
MEET YOUR PRODUCTION TARGETS
- Properly watered haul roads directly impact fleet cycle times, enabling you to meet production targets.
- Spend less time maintaining haul roads using proper watering techniques to solve overwatering and underwatering
- Prevent damage to trucks and reduce unplanned downtime with properly watered haul roads
- Pump features soft startup and shuts off automatically when the tank is empty, eliminating damage and preventing the pump from running dry
- The 777 is faster and more efficient with a 7% increase in torque for more power to the ground, new transmission controls, and higher travel speeds.
CONSERVE WATER. USE ONLY WHAT YOU NEED.
- The Cat Water Delivery System (WDS) helps you manage water effectively and sustainability — helping you do more with less.
- WDS utilizes automatic start and stop to help eliminate overwatering at road intersections.
- WDS provides variable water flow based on truck speed, ensuring most efficient water placement.
- The water cannon operates while truck is idling, reducing fuel consumption by up to *50%.
*Results shown from Cat WDS cannon output. Testing was conducted at the Caterpillar Tucson Proving Ground with data captured from a production study. Results may vary.
- Auto Neutral Idle: as the 777 idles in a forward gear, the transmission will automatically slip in and out of a neutral state to avoid stalling the torque converter and raising engine rpm.
- Engine Idle Shutdown: when your truck is in park and idles for more than a preset time, the truck will initiate engine shutdown to conserve fuel. This feature can be time adjusted or turned on or off according to your specific needs.
- Speed Limiting: while you can continue to gear limit your trucks, Caterpillar offers speed limiting that allows the truck to travel at a more fuel efficient engine speed and gear selection.
- New APECS transmission controls increase fuel efficiency by maintaining momentum and speed on grade.
- The water cannon operates at idle, which reduces fuel consumption during cannon operation by up to *50%.
*Results shown from Cat WDS cannon output. Testing was conducted at the Caterpillar Tucson Proving Ground with data captured from a production study. Results may vary.
CONNECT WITH CAT® MINESTAR™
- Cat MineStar for water uses cloud-based connectivity through cellular and WiFi connection to collect and manage data at any job site.
- We offer two levels of connectivity (Basic & Premium*) to meet any customer need using Cat MineStar.
- Water Solutions data can help ensure customers are meeting regulatory requirements.
- View maps and dashboards of your operation to see how much your trucks are watering, where they are located, how much fuel they are using, and more.
BASIC CONNECTIVITY: EQUIPMENT TRACKING
“I need to know where my truck is located and when it’s watering.”
Basic Connectivity* automates fundamental data collection, eliminating paper recording by the operator.- Near-real-time and historical reporting.
- Truck location and utilization data: routes, starts and stops.
- Fuel and water level.
- Whether or not the truck is spraying water.
- Water Delivery System utilization (auto vs. manual mode).
*Based on equipment connectivity via WiFi or cellular data. Basic Connectivity Package comes standard with a 6-month complimentary service-based offering.
PREMIUM CONNECTIVITY: EQUIPMENT TRACKING + PRODUCTION RECORDING
“I need to understand fuel utilization, water cycle duration, and how much water the truck is using.”
Premium Connectivity* offers a comprehensive reporting package with data and detailed reports o help mine managers and operators improve watering techniques and efficiency.
- Water usage by truck/fill station.
- Volume of water output over time and area covered.
- Water distribution rate, water delivery system
- setting by location, truck, and conditions.
- Activity breakdown including time and distance.
- (watering, not watering, stopped, etc.)
- View and export at least 6 weeks of historical data.
*Based on equipment connectivity via WiFi or cellular data.
BACKED BY THE ONE YOU TRUST
- Cat Water Solutions trucks are sold, serviced, and supported by the local Cat dealer you know and trust.
- Full support of Cat dealer and parts network.
- The truck is eligible for Equipment Protection Plans (EPP) & Customer Value Agreements (CVAs).
Equipment Info
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details.
CAT WATER DELIVERY SYSTEM (WDS)
Controls: Factory installed and integrated into cab
POWERTRAIN
Autostall
SUSPENSION SYSTEMS
Suspension, rear
ELECTRICAL
Alarm, backup
OPERATOR ENVIRONMENT
Air conditioning
CAT TECHNOLOGY PRODUCTS
Adaptive economy mode
GUARDS
Engine crankcase
FLUIDS
Extended Life Coolant to –35° C (–30° F)
OTHER STANDARD EQUIPMENT
Body mounting group
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